<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        let chior = [];//合唱团
        let duck = {
            duckSinging:function(){
                console.log('嘎嘎嘎');
            }
        }
        //999
        for(let i =0; i<999, i++;){
            chior.push(duck)
        }
        //chior.push(duck)
        let chick ={
            //只要有两只脚，并且嘎嘎嘎叫的就是鸭子
            duckSinging:function(){
                console.log('嘎嘎嘎')
            }
        }
        chior.push(chick);

        if(chior.length >=1000){
            console.log('招募工作已完成')
        }
    </script>
</body>
</html>